This paragraph is a standard three-warehouse integrated low-voltage comprehensive distribution box of the State Grid. It is designed in strict compliance with the technical specifications of the State Grid. It is divided into three independent compartments: an incoming room, a metering room, and a compensation room. It integrates power access, electrical energy measurement, and reactive power. Power compensation and distribution protection functions are suitable for 380V low-voltage distribution scenarios such as outdoor power distribution, photovoltaic grid connection, rural power grid transformation, and industrial and commercial power supply, and can directly connect to the acceptance standards of the State Grid. Box structure design 1. Sangang Independent Zone ○ Incoming room: responsible for external power access, main switch control, and line interruption protection; ○ Metering room: Independent enclosed space, used to install State Grid smart meters and transformers, support lead seal management of the power supply department, and strong compliance; ○ Compensation room: Built-in reactive power compensation module and capacitor bank to automatically adjust power factor, reduce line loss, and improve power supply quality. 2. The material and protective box are made of thick cold-rolled steel plate, which is treated with electrostatic plastic spray anti-corrosion, and can be made of 304 stainless steel; the top has a rain-proof eaves, and the door panel is sealed with rubber strips. The protection level reaches IP54. It is waterproof, dustproof, and anti-condensation. It is suitable for long-term outdoor use. 3. The State Grid logo configuration is printed on the front of the State Grid LOGO, the "electricity hazard" warning sign, and the names of each warehouse. The appearance specifications are unified and in line with the visual standards of the power industry. 4. The bottom of the installation structure is equipped with a channel steel base, which is installed in a floor-mounted manner to stably bear the load; there are three independent doors with door locks respectively, which make divisional maintenance, convenient operation and higher security. Core electrical configuration (customizable) 1. Incoming room: Moulded case circuit breaker, isolating switch, lightning protection surge protector to achieve overload, short circuit, leakage, and lightning protection; 2. Measuring room: Reserve installation positions for electricity meters, current and voltage transformers, and connecting terminals, and have regular wiring to meet the requirements for measuring accuracy; 3. Compensation room: Intelligent reactive power compensation controller, self-healing low-voltage shunt capacitor, reactor, contactor, automatic switching compensation, power factor stable above 0.95. Core product advantages 1. State Grid compliance acceptance: Sanchang is physically isolated and the metering room can be independently sealed, which fully matches the State Grid grid access acceptance specifications and is suitable for photovoltaic grid-connected and rural power grid transformation projects; 2. Functional integration: three-in-one line entry, measurement and compensation reduces the installation space of multiple boxes, simple wiring, and reduces construction costs; 3. Outdoor durability and safety: anti-corrosion and rust-proof structure, rain-proof and dustproof design, suitable for complex environments such as urban and rural outdoor, factory areas, and photovoltaic power stations; 4. Intelligent energy conservation: Automatic reactive power compensation reduces reactive power losses, saves electricity bills, and improves power supply stability; 5. Flexible customization: Switching current specifications, compensation capacity, box size, material, and functional modules can be customized according to power requirements. Applicable scenarios·Urban and rural power grid renovation, Taiwan power distribution projects; ·Outdoor power supply for industrial and commercial plants and parks; ·Grid power distribution of large-scale distributed photovoltaic power stations; ·Municipal engineering, new rural construction, agricultural irrigation power distribution systems. Optional customization items·Box material: cold-rolled steel plate sprayed/ 201 stainless steel/ 304 stainless steel; ·Current specifications: 400A, 630A, 800A, 1000A, etc.; ·Compensation capacity: 20kvar~300kvar configured on demand; ·Function upgrade: Install remote communication module, temperature and humidity controller, condensation heater, etc.